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#1
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Problem to read data from 5.25 floppy disk.
Hi everyone,
this weekend I try to plug my old 5.25 flopppy disk to read my old data that I used on my 80286 My recent PC doesn't support two floppy, so I plug it instead of the 3.5 floppy and setup in the bios to 3.5 720k because in that bios I have only choice of 1.44 or 720k under windows xp, I could read some disk, but somes not. Then I decided to plug it onto an older pc that support 5.25 in the bios, in this one I have choice between 5.25 360k and 1.22 I successfully setup it in the bios, I can still boot on the floppy drive 3.5 A: and it detect floppy drive B: I boot first with a win98se boot disk, but I cannot read disk, I just get error message: General failure reading drive B so I decide to make another boot disk of dos 3.3 maybe its because the file system on the floppy is different than the one that win98se used. and I get the same error. Now I am out of ideas, any suggestions ? In the bios I try both 360k and 1.22 thanks. |
#2
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Problem to read data from 5.25 floppy disk.
Mew wrote:
this weekend I try to plug my old 5.25 flopppy disk to read my old data that I used on my 80286 My recent PC doesn't support two floppy, so I plug it instead of the 3.5 floppy and setup in the bios to 3.5 720k because in that bios I have only choice of 1.44 or 720k under windows xp, I could read some disk, but somes not. Then I decided to plug it onto an older pc that support 5.25 in the bios, in this one I have choice between 5.25 360k and 1.22 I successfully setup it in the bios, I can still boot on the floppy drive 3.5 A: and it detect floppy drive B: I boot first with a win98se boot disk, but I cannot read disk, I just get error message: General failure reading drive B so I decide to make another boot disk of dos 3.3 maybe its because the file system on the floppy is different than the one that win98se used. and I get the same error. Now I am out of ideas, any suggestions ? In the bios I try both 360k and 1.22 What is the 5.25 drive, 360K or 1.2MB ? The first variable result could just be dirty heads in the drive, or because some of the floppys you were trying to read were written in a 1.2MB drive and you are using a 360K drive etc. The effect in the older PC may just be due to not using the correct media for the drive, the 360K/1.2MB format problem. |
#3
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Problem to read data from 5.25 floppy disk.
On 8 juin, 13:36, "Rod Speed" wrote:
Mew wrote: this weekend I try to plug my old 5.25 flopppy disk to read my old data that I used on my 80286 My recent PC doesn't support two floppy, so I plug it instead of the 3.5 floppy and setup in the bios to 3.5 720k because in that bios I have only choice of 1.44 or 720k under windows xp, I could read some disk, but somes not. Then I decided to plug it onto an older pc that support 5.25 in the bios, in this one I have choice between 5.25 360k and 1.22 I successfully setup it in the bios, I can still boot on the floppy drive 3.5 A: and it detect floppy drive B: I boot first with a win98se boot disk, but I cannot read disk, I just get error message: General failure reading drive B so I decide to make another boot disk of dos 3.3 maybe its because the file system on the floppy is different than the one that win98se used. and I get the same error. Now I am out of ideas, any suggestions ? In the bios I try both 360k and 1.22 What is the 5.25 drive, 360K or 1.2MB ? The first variable result could just be dirty heads in the drive, or because some of the floppys you were trying to read were written in a 1.2MB drive and you are using a 360K drive etc. The effect in the older PC may just be due to not using the correct media for the drive, the 360K/1.2MB format problem.- Masquer le texte des messages précédents - - Afficher le texte des messages précédents - Ok, but I read somewhere there exist a 720k 5.25 floppy is that true ? I am a little confused between the numbers of trakcs, sectors, 360k 720k 1.22 low density, high density, double side, etc ^^ There is a way to verify on the device if it is a 360, 720 or 1.22 floppy ? And for the disk, there is a way to verify if they are 360, 720 or 1.22 ? But does 1.22 floppy drive can read the two other type below ? And I read somewhere on the web that we can play with the rpm 300 or 360 and jumper settings on the device.. Thanks you for your help |
#4
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Problem to read data from 5.25 floppy disk.
so I decide to make another boot disk of dos 3.3 maybe its because the file system on the floppy is different than the one that win98se used. and I get the same error. Now I am out of ideas, any suggestions ? In the bios I try both 360k and 1.22 Like video tapes, the disk may have degraded over the years. If you have spare disks, use the under windows xp, I could read some disk, but somes not. as it reads some of the disk see if it will offer to format the spare disk, it it does see if it reads and writes. If it reads and writes a freshly formatted disk, see if it reads the problem disk. There are disk utilities that will read the bit patterns on the disk, from which you should be able to determine the file structure. The key is your Win XP, as it can see the disk, put the problem disk in it and try something like Hirens boot disk CD which has some low level disk utilities on it. |
#5
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Problem to read data from 5.25 floppy disk.
Mew wrote:
On 8 juin, 13:36, "Rod Speed" wrote: Mew wrote: this weekend I try to plug my old 5.25 flopppy disk to read my old data that I used on my 80286 My recent PC doesn't support two floppy, so I plug it instead of the 3.5 floppy and setup in the bios to 3.5 720k because in that bios I have only choice of 1.44 or 720k under windows xp, I could read some disk, but somes not. Then I decided to plug it onto an older pc that support 5.25 in the bios, in this one I have choice between 5.25 360k and 1.22 I successfully setup it in the bios, I can still boot on the floppy drive 3.5 A: and it detect floppy drive B: I boot first with a win98se boot disk, but I cannot read disk, I just get error message: General failure reading drive B so I decide to make another boot disk of dos 3.3 maybe its because the file system on the floppy is different than the one that win98se used. and I get the same error. Now I am out of ideas, any suggestions ? In the bios I try both 360k and 1.22 What is the 5.25 drive, 360K or 1.2MB ? The first variable result could just be dirty heads in the drive, or because some of the floppys you were trying to read were written in a 1.2MB drive and you are using a 360K drive etc. The effect in the older PC may just be due to not using the correct media for the drive, the 360K/1.2MB format problem. Ok, but I read somewhere there exist a 720k 5.25 floppy is that true ? It is possible to format one, so in that sense it is true. I am a little confused between the numbers of trakcs, sectors, 360k 720k 1.22 low density, high density, double side, etc ^^ Yeah, it gets surprisingly complicated, particularly if you try to use more than one 5.25 floppy drive. Its possible to write the floppy in a 1.2MB drive and for it not to be readable in a 360K drive, because the 1.2MB drive has half the head width of the 360K drive, so when you format the media in the 1.2MB drive, it just writes a narrow track down the middle of the old track and when you put the media back in a 360K drive, the wider head read the newly written track and the fragments of the old track on either side of that and fails. There is a way to verify on the device if it is a 360, 720 or 1.22 floppy ? The best way to do that is to use the model number on the physical drive. And for the disk, there is a way to verify if they are 360, 720 or 1.22 ? Thats usually marked on the media. But does 1.22 floppy drive can read the two other type below ? Yes. And I read somewhere on the web that we can play with the rpm 300 or 360 and jumper settings on the device.. Yeah, that gets messy too. Usually isnt the problem tho. Thanks you for your help |
#6
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Problem to read data from 5.25 floppy disk.
On 8 juin, 15:23, "Rod Speed" wrote:
Mew wrote: On 8 juin, 13:36, "Rod Speed" wrote: Mew wrote: this weekend I try to plug my old 5.25 flopppy disk to read my old data that I used on my 80286 My recent PC doesn't support two floppy, so I plug it instead of the 3.5 floppy and setup in the bios to 3.5 720k because in that bios I have only choice of 1.44 or 720k under windows xp, I could read some disk, but somes not. Then I decided to plug it onto an older pc that support 5.25 in the bios, in this one I have choice between 5.25 360k and 1.22 I successfully setup it in the bios, I can still boot on the floppy drive 3.5 A: and it detect floppy drive B: I boot first with a win98se boot disk, but I cannot read disk, I just get error message: General failure reading drive B so I decide to make another boot disk of dos 3.3 maybe its because the file system on the floppy is different than the one that win98se used. and I get the same error. Now I am out of ideas, any suggestions ? In the bios I try both 360k and 1.22 What is the 5.25 drive, 360K or 1.2MB ? The first variable result could just be dirty heads in the drive, or because some of the floppys you were trying to read were written in a 1.2MB drive and you are using a 360K drive etc. The effect in the older PC may just be due to not using the correct media for the drive, the 360K/1.2MB format problem. Ok, but I read somewhere there exist a 720k 5.25 floppy is that true ? It is possible to format one, so in that sense it is true. I am a little confused between the numbers of trakcs, sectors, 360k 720k 1.22 low density, high density, double side, etc ^^ Yeah, it gets surprisingly complicated, particularly if you try to use more than one 5.25 floppy drive. Its possible to write the floppy in a 1.2MB drive and for it not to be readable in a 360K drive, because the 1.2MB drive has half the head width of the 360K drive, so when you format the media in the 1.2MB drive, it just writes a narrow track down the middle of the old track and when you put the media back in a 360K drive, the wider head read the newly written track and the fragments of the old track on either side of that and fails. There is a way to verify on the device if it is a 360, 720 or 1.22 floppy ? The best way to do that is to use the model number on the physical drive. And for the disk, there is a way to verify if they are 360, 720 or 1.22 ? Thats usually marked on the media. But does 1.22 floppy drive can read the two other type below ? Yes. And I read somewhere on the web that we can play with the rpm 300 or 360 and jumper settings on the device.. Yeah, that gets messy too. Usually isnt the problem tho. Thanks you for your help - Masquer le texte des messages précédents - - Afficher le texte des messages précédents -- Masquer le texte des messages précédents - - Afficher le texte des messages précédents - Ok, I will try to clean the head of the device when I will be back to home later, I read somewhere too the problem maybe come from format.com of dos, for some reason it can't read track 0 so it return the error that the disk is unusable. maybe if I try a boot disk of pc- dos ? |
#7
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Problem to read data from 5.25 floppy disk.
On Mon, 8 Jun 2009 09:05:34 -0700 (PDT), Mew put
finger to keyboard and composed: Hi everyone, this weekend I try to plug my old 5.25 flopppy disk to read my old data that I used on my 80286 My recent PC doesn't support two floppy, so I plug it instead of the 3.5 floppy and setup in the bios to 3.5 720k because in that bios I have only choice of 1.44 or 720k under windows xp, I could read some disk, but somes not. Then I decided to plug it onto an older pc that support 5.25 in the bios, in this one I have choice between 5.25 360k and 1.22 I successfully setup it in the bios, I can still boot on the floppy drive 3.5 A: and it detect floppy drive B: I boot first with a win98se boot disk, but I cannot read disk, I just get error message: General failure reading drive B so I decide to make another boot disk of dos 3.3 maybe its because the file system on the floppy is different than the one that win98se used. and I get the same error. Now I am out of ideas, any suggestions ? In the bios I try both 360k and 1.22 thanks. What is the brand and model number of your 5.25" drive? Do you have any blank 5.25" diskettes? If so, try to format them. Check your diskettes for scratch marks or mould by spinning them manually inside the jacket. Use DOS Debug to view the diskette's boot sector as follows: debug -L 100 1 0 1 -D 100 2FF -Q - Franc Zabkar -- Please remove one 'i' from my address when replying by email. |
#8
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Problem to read data from 5.25 floppy disk.
On Jun 8, 6:55*pm, Franc Zabkar wrote:
On Mon, 8 Jun 2009 09:05:34 -0700 (PDT), Mew put finger to keyboard and composed: Hi everyone, this weekend I try to plug my old 5.25 flopppy disk to read my old data that I used on my 80286 My recent PC doesn't support two floppy, so I plug it instead of the 3.5 floppy and setup in the bios to 3.5 720k because in that bios I have only choice of 1.44 or 720k under windows xp, I could read some disk, but somes not. Then I decided to plug it onto an older pc that support 5.25 in the bios, in this one I have choice between 5.25 360k and 1.22 I successfully setup it in the bios, I can still boot on the floppy drive 3.5 A: and it detect floppy drive B: I boot first with a win98se boot disk, but I cannot read disk, I just get error message: General failure reading drive B so I decide to make another boot disk of dos 3.3 maybe its because the file system on the floppy is different than the one that win98se used. and I get the same error. Now I am out of ideas, any suggestions ? In the bios I try both 360k and 1.22 thanks. What is the brand and model number of your 5.25" drive? Do you have any blank 5.25" diskettes? If so, try to format them. Check your diskettes for scratch marks or mould by spinning them manually inside the jacket. Use DOS Debug to view the diskette's boot sector as follows: *debug *-L 100 1 0 1 *-D 100 2FF *-Q - Franc Zabkar -- Please remove one 'i' from my address when replying by email. I just check the model and it is panasonic ju-475-4 I try to format a disk but I got error: Invalid media or Track 0 bad - disk unusable |
#9
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Problem to read data from 5.25 floppy disk.
Mew wrote
Franc Zabkar wrote Mew wrote this weekend I try to plug my old 5.25 flopppy disk to read my old data that I used on my 80286 My recent PC doesn't support two floppy, so I plug it instead of the 3.5 floppy and setup in the bios to 3.5 720k because in that bios I have only choice of 1.44 or 720k under windows xp, I could read some disk, but somes not. Then I decided to plug it onto an older pc that support 5.25 in the bios, in this one I have choice between 5.25 360k and 1.22 I successfully setup it in the bios, I can still boot on the floppy drive 3.5 A: and it detect floppy drive B: I boot first with a win98se boot disk, but I cannot read disk, I just get error message: General failure reading drive B so I decide to make another boot disk of dos 3.3 maybe its because the file system on the floppy is different than the one that win98se used. and I get the same error. Now I am out of ideas, any suggestions ? In the bios I try both 360k and 1.22 What is the brand and model number of your 5.25" drive? Do you have any blank 5.25" diskettes? If so, try to format them. Check your diskettes for scratch marks or mould by spinning them manually inside the jacket. Use DOS Debug to view the diskette's boot sector as follows: debug -L 100 1 0 1 -D 100 2FF -Q I just check the model and it is panasonic ju-475-4 Thats a 1.2MB drive, so if you're trying to format 360K disks in it, that would explain the result you are getting. http://insight.actapricot.org/insigh...y/pa475-4f.htm I try to format a disk but I got error: Invalid media or Track 0 bad - disk unusable What does the label on the media say ? |
#10
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Problem to read data from 5.25 floppy disk.
On Tue, 9 Jun 2009 11:20:43 +1000, "Rod Speed"
wrote: Mew wrote Franc Zabkar wrote Mew wrote I just check the model and it is panasonic ju-475-4 Thats a 1.2MB drive, so if you're trying to format 360K disks in it, that would explain the result you are getting. http://insight.actapricot.org/insigh...y/pa475-4f.htm Aside from the differences between 1.2 MB and 360KB floppy disks, there is the issue of the AGE of the media. Magnetic media that old may actually "shed" the magnetic coating during a read-write operation, contaminating the read-write head. -AH I try to format a disk but I got error: Invalid media or Track 0 bad - disk unusable What does the label on the media say ? |
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